wtw VARIO - Instrument does not react to keystroke

VARIO pH What to do if...
45
ba75373e03 05/2005
Display of l
Instrument does
not react
to keystroke
Sensor symbol
flashes
Message S toFull
StoFul lStoFul l
StoFul l
Adapter with electrode
+ measuring solution:
– Conductivity too low – Use suitable electrode
– Temperature too high – Use suitable electrode
– Organic liquids – Use suitable electrode
Cause Remedy
– Battery almost empty – Exchange the battery (see
section 5.2)
Cause Remedy
– Operating condition undefined or
EMC load unallowed
– Processor reset:
Press <1> and <8> at the
same time and release them
again.
Stored data and calibration
values are retained.
Cause Remedy
– Calibration interval expired – Recalibrate the measuring
system
Cause Remedy
– All memory locations are full – Clear the memory (see section
4.5.2).